EP0025421A2 - A tool mounting and a cutter drum for earth excavating machines - Google Patents

A tool mounting and a cutter drum for earth excavating machines Download PDF

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Publication number
EP0025421A2
EP0025421A2 EP80850112A EP80850112A EP0025421A2 EP 0025421 A2 EP0025421 A2 EP 0025421A2 EP 80850112 A EP80850112 A EP 80850112A EP 80850112 A EP80850112 A EP 80850112A EP 0025421 A2 EP0025421 A2 EP 0025421A2
Authority
EP
European Patent Office
Prior art keywords
contact surface
cutting tool
ring
groove
adapter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP80850112A
Other languages
German (de)
French (fr)
Other versions
EP0025421B1 (en
EP0025421A3 (en
Inventor
Anders Persson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandvik AB
Original Assignee
Sandvik AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandvik AB filed Critical Sandvik AB
Priority to AT80850112T priority Critical patent/ATE10018T1/en
Publication of EP0025421A2 publication Critical patent/EP0025421A2/en
Publication of EP0025421A3 publication Critical patent/EP0025421A3/en
Application granted granted Critical
Publication of EP0025421B1 publication Critical patent/EP0025421B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/783—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a horizontal axis of rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/191—Means for fixing picks or holders for fixing holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17846—Single transverse bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/192—Face or end mill with separate means to fasten tool to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1932—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with means to fasten tool seat to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder

Definitions

  • the present invention relates to earth excavating machines in general and more particularly to the attachment of cutting tools to such machines.
  • the improved attachment is applied in road planing machines of the type comprising a rotating cutter drum on which a helical flange or ring is mounted. Tungsten carbide tipped steel teeth are mounted on the flange.
  • the cutter drum rotates the teeth strip away concrete or asphalt pavement surfaces to a desired depth.
  • the removed concrete may be re-used as a base material and the removed asphalt may be used on secondary roads, reprocessed into a high quality mix or stock piled for use later on.
  • One object of the invention is to decrease the down-time during replacement of a tool holder. This is attained by mounting the cutting tooth in an adapter and wedgingly securing the adapter to the drum so that the adapter is readily attachable and detachable.
  • Another object of the invention is to increase the lengths of the replacement intervals of the tool holders. This is attained by using a large wedge surface on the tool holder for taking up the axial forces acting on the tooth, thereby preventing the teeth from penetrating backwards.
  • the improved tool holder including an adapter is applied in earth excavating machines in general, particularly machines for extraction of earth formations such as coal and rock.
  • the road planing machine 10 comprises a three point crawler suspension 11,12, an engine 13, an operators control console 14 and a rotary cutter assembly generally denoted by 15.
  • the removed material is brought to a pickup conveyor 38 which transports the material to a load out conveyor 31 from which the material is loaded on a truck.
  • the rotary cutter assembly 15 comprises a rotary drum 16 on which a helical ring or flange 17 is attached.
  • a plurality of cutting tools 18 are mounted on the flange 17 under mutual spacing.
  • the cut-cing tool 18 is provided with a cemented carbide tip 26.
  • the cutting tool 18 is mounted in a tool holder which comprises an adapter 19.
  • the adapter 19 has a tongue comprising an extension 20 which projects into an outwardly open groove 21 in a tool mounting comprising a casing 22.
  • the casing 22 is welded to the flange 17. It is to be understood that the casing 22 forms part of the flange 17.
  • the extension 20 comprises a projection 23 which includes an outwardly directed contact surface 24.
  • the adapter 19 includes a contact surface 25 which is located between the contact surface 24 and the tool tip 26. The contact surfaces 24,25 converge in the rotational direction of the drum 16.
  • the side walls 32,33 of the groove 21 and the side walls of the ring 17 run in parallel directions.
  • the adapter 19 is provided with a bore 27 in which the cutting tool 18 is received.
  • a pin 28 is attached to the casing 22.
  • the pin 28 projects into an annular recess 29 on the cutting tool 18 so as to provide a locking means for preventing unintentional withdrawal of the cutting tool out of the bore 27 while permitting rotation of the cutting tool.
  • the contact surface 24 is located at the one side of a radial centre plane 30 through the ring 17.
  • the centre plane 30 coincides with the centre plane through the casing 22 and the tool 18.
  • An angle ⁇ between the radius R of the drum intersecting the tip of the tool 18, on the one hand, and the contact surface 25, on the other hand, is larger than an angle ⁇ between the radius R and the contact surface 24.
  • the angle oC is obtuse and the angle ⁇ is acute.
  • the angles ⁇ and ⁇ are located on a rear side of the radius R relative to the direction of drum re- tation, and are located on the radially inward sides of the surfaces 24,25.
  • a pin 34 is attached to the casing 22 in the side wall 33 of the groove 21 and extends in the direction of the ring 170
  • the pin 34 forms a projection from the side wall 33 and includes a contact surface 35 which forms therebeneath an undercut portion 36 of the groove 21.
  • the undercut portion 36 extends generally in the direction of the ring 17.
  • the pin 34 terminates short of the front end of the groove 21; i.e. the left end in Fig. 3, to define an enlarged opening.
  • the casing 22 includes a contact surface 37 which extends at an angle relative to the contact surface 35.
  • the enlarged opening at the front end of the pin 34 is sized to receive the extension 20 and the projection 23 such that upon movement of the adapter 19 toward the rear end of the groove 21 the projection 23 travels along the undercut portion 36.
  • the projection 23 is defined by a lateral recess in the extension 20 which recess is shaped similar to the pin 34 to receive the latter when the adapter 19 is inserted into the groove 21.
  • the contact surfaces 35,37 on the casing 22 or ring 17, then, are contacting the contact surfaces 24,25 on the adapter 19, thereby wedgingly securing the adapter 19 to the drum 16.
  • the contact surfaces 35,37 converge in the rotational direction of the drum 16.
  • all contact surfaces 24,25, 35,37 are planar.
  • the cutting tool 18 will penetrate backwards into the adapter 19. Due to the fact that the adapter is wedgingly secured it can readily be replaced by a new one when damaged.
  • the cutting tool and the adapter are made as an integral unit 39. This means that the axial forces applied on the cutting insert 26' are taken up by the contact surface 37 on the casing 22. This increases the length of the replacement intervals.
  • the embodiment shown in Fig. 6 is particularly designed for cutting asphalt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Road Repair (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

A tool mounting for earth excavating machines which in use is exposed to high axial forces. For purposes of decreasing the standstill during replacement of the tool holder, the latter is formed as a readily detachable adapter. The tool and the adapter may be an integral unit so that the two members are jointly replaced.

Description

  • The present invention relates to earth excavating machines in general and more particularly to the attachment of cutting tools to such machines.
  • According to one aspect of the invention the improved attachment is applied in road planing machines of the type comprising a rotating cutter drum on which a helical flange or ring is mounted. Tungsten carbide tipped steel teeth are mounted on the flange. When the cutter drum rotates the teeth strip away concrete or asphalt pavement surfaces to a desired depth. The removed concrete may be re-used as a base material and the removed asphalt may be used on secondary roads, reprocessed into a high quality mix or stock piled for use later on.
  • In known road planing machines the teeth are mounted in tool holders which are attached to the flange by welding. In use high axial forces are applied on the teeth which means that the teeth will penetrate backwards into the tool holders, thereby damaging the latter. When a tool holder is to be replaced it has to be cut loose, whereupon a new tool holder is secured to the flange by welding. This is a time consuming and, due to the high machine cost, expensive operation.
  • One object of the invention is to decrease the down-time during replacement of a tool holder. This is attained by mounting the cutting tooth in an adapter and wedgingly securing the adapter to the drum so that the adapter is readily attachable and detachable.
  • Another object of the invention is to increase the lengths of the replacement intervals of the tool holders. This is attained by using a large wedge surface on the tool holder for taking up the axial forces acting on the tooth, thereby preventing the teeth from penetrating backwards.
  • According to a general aspect of the invention the improved tool holder including an adapter is applied in earth excavating machines in general, particularly machines for extraction of earth formations such as coal and rock.
  • The above and other objects of the invention are attained by giving the invention the characterizing features stated in the appending claims.
  • The invention is described in detail in the following description with reference to the accompanying drawings in which two embodiments are shown by way of example. It is to be understood that these embodiments are only illustrative of the invention and that various modifications thereof may be made within the scope of the claims.
    • In the drawings, Fig. 1 shows a side view of a road planing machine in which the invention is applied.
    • Fig. 2 shows a perspective view of a cutter drum in the read planing machine.
    • Fig. 3 shows in section a cutting tool mounted in a tool holder.
    • Fig. 4 is a section taken on the line IV-IY in Fig. 3.
    • Fig. 5 is a section taken on the line V-V in Fig. 3.
    • Fig. 6 shows in section a cutting tool mounted in a tool holder according to another embodiment of the invention.
  • The road planing machine 10 comprises a three point crawler suspension 11,12, an engine 13, an operators control console 14 and a rotary cutter assembly generally denoted by 15. The removed material is brought to a pickup conveyor 38 which transports the material to a load out conveyor 31 from which the material is loaded on a truck.
  • The rotary cutter assembly 15 comprises a rotary drum 16 on which a helical ring or flange 17 is attached. A plurality of cutting tools 18 are mounted on the flange 17 under mutual spacing. The cut-cing tool 18 is provided with a cemented carbide tip 26.
  • In the embodiment according to Figs. 3 - 5 the cutting tool 18 is mounted in a tool holder which comprises an adapter 19. The adapter 19 has a tongue comprising an extension 20 which projects into an outwardly open groove 21 in a tool mounting comprising a casing 22. The casing 22 is welded to the flange 17. It is to be understood that the casing 22 forms part of the flange 17. The groove 21, thus, can be made directly in the flange. The extension 20 comprises a projection 23 which includes an outwardly directed contact surface 24. The adapter 19 includes a contact surface 25 which is located between the contact surface 24 and the tool tip 26. The contact surfaces 24,25 converge in the rotational direction of the drum 16. The side walls 32,33 of the groove 21 and the side walls of the ring 17 run in parallel directions. The adapter 19 is provided with a bore 27 in which the cutting tool 18 is received. A pin 28 is attached to the casing 22. The pin 28 projects into an annular recess 29 on the cutting tool 18 so as to provide a locking means for preventing unintentional withdrawal of the cutting tool out of the bore 27 while permitting rotation of the cutting tool. The contact surface 24 is located at the one side of a radial centre plane 30 through the ring 17. Preferably, the centre plane 30 coincides with the centre plane through the casing 22 and the tool 18. An angle α between the radius R of the drum intersecting the tip of the tool 18, on the one hand, and the contact surface 25, on the other hand, is larger than an angle β between the radius R and the contact surface 24. The angleoCis obtuse and the angle β is acute. The angles α and β are located on a rear side of the radius R relative to the direction of drum re- tation, and are located on the radially inward sides of the surfaces 24,25.
  • A pin 34 is attached to the casing 22 in the side wall 33 of the groove 21 and extends in the direction of the ring 170 The pin 34 forms a projection from the side wall 33 and includes a contact surface 35 which forms therebeneath an undercut portion 36 of the groove 21. The undercut portion 36 extends generally in the direction of the ring 17. The pin 34 terminates short of the front end of the groove 21; i.e. the left end in Fig. 3, to define an enlarged opening. The casing 22 includes a contact surface 37 which extends at an angle relative to the contact surface 35. The enlarged opening at the front end of the pin 34 is sized to receive the extension 20 and the projection 23 such that upon movement of the adapter 19 toward the rear end of the groove 21 the projection 23 travels along the undercut portion 36. The projection 23 is defined by a lateral recess in the extension 20 which recess is shaped similar to the pin 34 to receive the latter when the adapter 19 is inserted into the groove 21. The contact surfaces 35,37 on the casing 22 or ring 17, then, are contacting the contact surfaces 24,25 on the adapter 19, thereby wedgingly securing the adapter 19 to the drum 16. The contact surfaces 35,37 converge in the rotational direction of the drum 16. Preferably, all contact surfaces 24,25, 35,37 are planar.
  • In use, the cutting tool 18 will penetrate backwards into the adapter 19. Due to the fact that the adapter is wedgingly secured it can readily be replaced by a new one when damaged.
  • In the embodiment according to Fig. 6 the cutting tool and the adapter are made as an integral unit 39. This means that the axial forces applied on the cutting insert 26' are taken up by the contact surface 37 on the casing 22. This increases the length of the replacement intervals. The embodiment shown in Fig. 6 is particularly designed for cutting asphalt.

Claims (19)

1. In a planing machine for pavement profiling of the type comprising a rotating drum (16) having a helical ring (17) mounted thereon, a tool mounting comprising an elongated outwardly open groove (21) extending in the rotational direction of said drum,
a first contact surface (35) on said ring, said first contact surface being located in said groove radially inwardly of the periphery of said ring, and
a second contact surface (37) on said.-ring, said second contact surface being located radially outwardly of the periphery of said ring,
said first and second contact surfaces (35,37) being opposed and converging in the rotational direction of said drum, thereby being adapted for securing thereto a cutting tool (18) by wedge action.
2. A tool mounting according to claim 1, wherein the major portion of the first contact surface (35) is located at the one side of a radial centre plane (30) through the ring (17).
3. A tool mounting according to claim 2, wherein a first angle (α) between the radius (R) of the drum (16) and the second contact surface (37) is larger than a second angle (β) between the radius (R) of the drum and the first contact surface (35).
4. A tool mounting according to claim 3, wherein said first angle is obtuse and said second angle is acute.
5. A tool mounting according to claim 1, wherein at least one side wall (32) of the groove (21) and the side walls of the ring (17) run in parallel directions.
6. In a planing machine for pavement profiling of the type comprising a rotating drum (16) having a helical ring (17) mounted thereon.
a tool mounting (22) on said ring, said tool mounting having an elongated outwardly open groove (21) extending in the rotational direction of said drum,
a first contact surface (35) on said tool mounting, and
a second contact surface (37) on said tool movnting, the major portion of said first contact surface being located in said groove (21) at the one side of a central plane (30) through said ring,
said first and second contact surfaces (35,37) being opposed and converging in the rotational direction of said drum, thereby being adapted for securing thereto a cutting tool (18) by wedge action.
7. An assembly of a cutter drum (16) and cutting tool holders (19) for a road planing machine, said cutter drum having a helical ring (17) mounted thereon and each holder (19) being mounted by a tongue and groove connection comprising:
an outwardly open groove (21) formed in said ring, said groove including opposite side walls (32,33) extending in the direction of said ring, a first projection (34) extending laterally from one (33) of said side walls toward the other side wall, said first projection including a first contact surface (35) forming therebeneath an undercut portion (36) of said groove extending in the direction of said ring, said first projection terminating short of the front end of said groove to define an enlarged opening, said ring including a second contact surface (37) spaced outwardly of said first contact surface and extending at an angle relative thereto, and
a tongue comprising an extension (20) of said cutting tool holder, one of the side walls of said extension including a second projection (23) extending laterally in the opposite direction relative to said first projection, said second projection including a third contact surface (24),
said cutting tool holder including a fourth contact surface (25) spaced outwardly of said third contact surface and extending at an angle relative thereto, said enlarged opening to said groove being sized to receive said extension and said second projection such that upon movement of said cutting tool holder toward the rear end of said groove, said second projection travels along said undercut portion of said.groove, with said first and third contact surfaces and said second and fourth contact surfaces contacting one another to wedgingly secure said cutting tool holder to said cutter drum.
8. An assembly according to claim 7, wherein the first and second contact surfaces (35,37) are planar and convergent and the third.and fourth contact surfaces (24,25) are planar and convergent.
9. An assembly according to claim 8, wherein said first projection comprises a pin (34) mounted in said one side wall (33) of the groove (21) and extending generally in the direction of the ring (17).
10. An assembly according to claim 9, wherein said second projection (23) is defined by a recess in said tongue, said recess shaped similar to said pin and receiving the latter when said cutting tool holder is inserted into said groove.
11. An assembly according to any of claims 7 - 10, wherein said groove (21) is formed in a generally rectangular casing (22), said casing being attached to the ring (17), preferably by welding.
12. An assembly according to any of claims 7 - 11, wherein said cutting tool holder comprises an adapter (19) on which said third and fourth contact surfaces (24,25) are provided.
13. An assembly according to claim 12, wherein the cutting tool (18) is rotatably mounted in said adapter (19).
14. An assembly according to claim 13, wherein said adapter (19) is provided with locking means (28) for securing said cutting tool (18) against axial withdrawal out of said adapter while permitting rotation of said cutting tool.
15. An assembly according to claim 14, wherein said locking means comprises a second pin (28) mounted in the adapter (19), said second pin projecting into an annular recess (29) on the cutting tool (18).
16. A cutting tool holder intended to be attached to the cutter head of a machine for extraction of earth formations comprising an adapter (19), said adapter having an extension (20), said extension comprising a projection (23) which projects from said extension at the end thereof opposite to the cutting tool (18), said projection including a first contact surface (24), said adapter including a second contact surface (25) located between said first contact surface and the cutting edge (26) of said cutting tool, said first and second contact surfaces extending at an angle relative to one another, a bore (27) in said adapter for receiving said cutting tool, and locking means (28,29) in said adapter for preventing unintentional withdrawal of said cutting tool out of said bore.
17. A tool holder according to claim 16, wherein said locking means comprises a pin (28) which projects into an annular recess (29) on the cutting tool so as to permit rotation thereof.
18. A tool holder according to claim 16, wherein said first and second contact surfaces (24,25) converge in the working direction of the cutting tool (18).
19. A tool holder according to any of claims 16 - 18, wherein said first and second contact surfaces (24,25) are intended to cooperate with corresponding surfaces (35,37) on the cutter head to wedgingly secure the adapter (19) thereto.
EP80850112A 1979-08-08 1980-07-10 A tool mounting and a cutter drum for earth excavating machines Expired EP0025421B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80850112T ATE10018T1 (en) 1979-08-08 1980-07-10 TOOL HOLDER AND CUTTING ROLLER FOR EXCAVATORS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64770 1979-08-08
US06/064,770 US4302055A (en) 1978-02-27 1979-08-08 Wedgingly mounted tool holder or adapter for a cutting head

Publications (3)

Publication Number Publication Date
EP0025421A2 true EP0025421A2 (en) 1981-03-18
EP0025421A3 EP0025421A3 (en) 1981-04-15
EP0025421B1 EP0025421B1 (en) 1984-10-24

Family

ID=22058158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80850112A Expired EP0025421B1 (en) 1979-08-08 1980-07-10 A tool mounting and a cutter drum for earth excavating machines

Country Status (15)

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US (1) US4302055A (en)
EP (1) EP0025421B1 (en)
JP (1) JPS5634807A (en)
AR (1) AR226565A1 (en)
AT (1) ATE10018T1 (en)
AU (1) AU538966B2 (en)
BR (1) BR8004940A (en)
CA (1) CA1144193A (en)
DE (1) DE3069501D1 (en)
DK (1) DK315080A (en)
ES (1) ES8200736A1 (en)
FI (1) FI802487A (en)
IN (1) IN153482B (en)
NO (1) NO802354L (en)
ZA (1) ZA804300B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000987A1 (en) * 1982-08-26 1984-03-15 Keld Lundqvist Cutting tool for use in the milling of, for example, asphalt roads
GB2129853A (en) * 1982-11-08 1984-05-23 Wimet Mining Limited Cutter picks and pick mounting arrangements
GB2182373A (en) * 1985-10-31 1987-05-13 Spencer Todwick Limited Mineral cutting tools
FR2589945A1 (en) * 1985-11-07 1987-05-15 Santrade Ltd Support for a cutting tool for working on a hard material
US4986011A (en) * 1989-04-17 1991-01-22 Stapel B.V. Cutting device with removable tools
US5161859A (en) * 1983-03-23 1992-11-10 Santrade Limited Excavating tool cutting insert
GB2290324A (en) * 1994-06-16 1995-12-20 Sandvik Rock Tools Ltd Cutter picks
EP0771911A1 (en) * 1995-10-31 1997-05-07 BITELLI S.p.A. An active element for the support of at least one milling tool, suited to be applied on milling drums of operating machines for the removal of soils
CN102146645A (en) * 2011-04-18 2011-08-10 南车戚墅堰机车车辆工艺研究所有限公司 Abrasion-resistant rake teeth for railway ballast cleaning device
ITVI20100335A1 (en) * 2010-12-14 2012-06-15 Gelai E Castegnaro S P A MILLED ELEMENT PERFORMED FOR MILLING DRUMS OF MILLING MACHINES AND MILLING DRUM USING THE ABOVE MILLING ELEMENTS

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693518A (en) * 1981-01-08 1987-09-15 Kennametal, Inc. Means for holding cutter bits
GB2113177B (en) * 1982-01-08 1986-02-05 Kennametal Inc Bit and block assembly
ES8405099A1 (en) * 1982-06-08 1984-05-16 Koehring Co An earth working machine.
US4650254A (en) * 1983-12-14 1987-03-17 Joy Manufacturing Company Bit holder
US5135035A (en) * 1991-03-01 1992-08-04 Mills Ronald D Independently rotatably cutting bit for rotary wheel cutters
WO1995001481A1 (en) * 1993-06-29 1995-01-12 Keech Castings Australia Pty. Limited Spool and wedge assembly and method of use thereof
US5529384A (en) * 1994-08-25 1996-06-25 Rogers Tool Works, Inc. Bit holder block and cutter bit therefor
US6357832B1 (en) 1998-07-24 2002-03-19 The Sollami Company Tool mounting assembly with tungsten carbide insert
US6234579B1 (en) 1999-04-07 2001-05-22 Kennametal Pc Inc. Cutting tool holder retention assembly
US6220671B1 (en) 1999-07-09 2001-04-24 Kennametal Pc Inc. Cutting tool holder retention system
US8210618B2 (en) * 2007-08-23 2012-07-03 Sandvik Intellectual Property Ab Reduced volume cutting tip and cutter bit assembly incorporating same
US8678517B2 (en) 2007-08-23 2014-03-25 Sandvik Intellectual Property Ab Reduced volume cutting tip and cutting bit incorporating same
DE102009059188A1 (en) * 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Chisel holder and base part
RU2580545C2 (en) 2010-12-03 2016-04-10 Виртген Гмбх Cutter holder
EP2646652B1 (en) 2010-12-03 2020-10-14 Wirtgen GmbH Chisel holder
TWI483798B (en) 2010-12-03 2015-05-11 Wirtgen Gmbh Chisel holder and chisel holder system with a chisel holder and a base
CN102486022B (en) 2010-12-03 2014-09-17 维特根有限公司 Chisel holder, and chisel holder system comprising chisel holder and base part
DE102010061019A1 (en) 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Chisel holder and lower tool part for a chisel holder
DE102011051525A1 (en) 2011-07-04 2013-01-10 Wirtgen Gmbh Chisel holder for a soil tillage machine
GB2551098A (en) * 2013-06-18 2017-12-06 Esco Corp Mineral winning pick, pick holder, and combination
AU2015227270A1 (en) 2014-03-07 2016-10-27 Vermeer Manufacturing Company Replaceable mounting apparatus for reducing elements
USD746878S1 (en) 2014-04-11 2016-01-05 Vermeer Manufacturing Company Mounting block for reducing elements
USD746340S1 (en) 2014-04-11 2015-12-29 Vermeer Manufacturing Company Mounting block for reducing elements
EP2963237A1 (en) * 2014-07-03 2016-01-06 Sandvik Intellectual Property AB Variable angle cutting bit retaining assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
GB1333934A (en) * 1971-09-29 1973-10-17 Spencer Sons Ltd Matthias Mineral mining equipment
US3820849A (en) * 1972-12-01 1974-06-28 Sandvik Ab Cutting tips removably secured in milling cutter head
US3992061A (en) * 1975-04-07 1976-11-16 Joy Manufacturing Company Mining cutter bit assembly
US4006936A (en) * 1975-11-06 1977-02-08 Dresser Industries, Inc. Rotary cutter for a road planer
FR2345610A1 (en) * 1975-08-01 1977-10-21 Cincinnati Mine Machinery Co DEVICE FOR ATTACHING A TOOL HOLDER ON A SUPPORT ELEMENT
FR2382307A1 (en) * 1977-03-03 1978-09-29 Sandvik Ab DEVICE FOR MOUNTING TOOL HOLDERS IN A CUTTING HEAD OF A ROCK DRILL

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252391A (en) * 1962-08-28 1966-05-24 Esco Corp Compactor tooth
US3519309A (en) * 1965-08-12 1970-07-07 Kennametal Inc Rotary cone bit retained by captive keeper ring
SE340989B (en) * 1970-03-24 1971-12-13 Sandvikens Jernverks Ab
US3841708A (en) * 1972-06-15 1974-10-15 Kennametal Inc Excavating tool device
DE2319620A1 (en) * 1973-04-18 1974-10-31 Krampe & Co EQUIPMENT ON MACHINES FOR THE EXTRACTION OF MINERALS, WITH AT LEAST ONE CHISEL-LIKE TOOL

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333934A (en) * 1971-09-29 1973-10-17 Spencer Sons Ltd Matthias Mineral mining equipment
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
US3820849A (en) * 1972-12-01 1974-06-28 Sandvik Ab Cutting tips removably secured in milling cutter head
US3992061A (en) * 1975-04-07 1976-11-16 Joy Manufacturing Company Mining cutter bit assembly
FR2345610A1 (en) * 1975-08-01 1977-10-21 Cincinnati Mine Machinery Co DEVICE FOR ATTACHING A TOOL HOLDER ON A SUPPORT ELEMENT
US4057294A (en) * 1975-08-01 1977-11-08 The Cincinnati Mine Machinery Company Wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like
US4006936A (en) * 1975-11-06 1977-02-08 Dresser Industries, Inc. Rotary cutter for a road planer
FR2382307A1 (en) * 1977-03-03 1978-09-29 Sandvik Ab DEVICE FOR MOUNTING TOOL HOLDERS IN A CUTTING HEAD OF A ROCK DRILL
CA1072588A (en) * 1977-03-03 1980-02-26 E. Anders Persson Rock milling cutters

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000987A1 (en) * 1982-08-26 1984-03-15 Keld Lundqvist Cutting tool for use in the milling of, for example, asphalt roads
GB2129853A (en) * 1982-11-08 1984-05-23 Wimet Mining Limited Cutter picks and pick mounting arrangements
US5161859A (en) * 1983-03-23 1992-11-10 Santrade Limited Excavating tool cutting insert
GB2182373A (en) * 1985-10-31 1987-05-13 Spencer Todwick Limited Mineral cutting tools
FR2589945A1 (en) * 1985-11-07 1987-05-15 Santrade Ltd Support for a cutting tool for working on a hard material
US4986011A (en) * 1989-04-17 1991-01-22 Stapel B.V. Cutting device with removable tools
GB2290324A (en) * 1994-06-16 1995-12-20 Sandvik Rock Tools Ltd Cutter picks
GB2290324B (en) * 1994-06-16 1997-11-26 Sandvik Rock Tools Ltd Cutter picks
EP0771911A1 (en) * 1995-10-31 1997-05-07 BITELLI S.p.A. An active element for the support of at least one milling tool, suited to be applied on milling drums of operating machines for the removal of soils
ITVI20100335A1 (en) * 2010-12-14 2012-06-15 Gelai E Castegnaro S P A MILLED ELEMENT PERFORMED FOR MILLING DRUMS OF MILLING MACHINES AND MILLING DRUM USING THE ABOVE MILLING ELEMENTS
WO2012080821A1 (en) 2010-12-14 2012-06-21 Gelai E Castegnaro S.P.A. Improved milling element for milling drums of scarifieres and milling drum using said milling element
CN102146645A (en) * 2011-04-18 2011-08-10 南车戚墅堰机车车辆工艺研究所有限公司 Abrasion-resistant rake teeth for railway ballast cleaning device

Also Published As

Publication number Publication date
EP0025421B1 (en) 1984-10-24
ES494057A0 (en) 1981-11-01
AU6066080A (en) 1981-02-12
US4302055A (en) 1981-11-24
ATE10018T1 (en) 1984-11-15
CA1144193A (en) 1983-04-05
FI802487A (en) 1981-02-09
IN153482B (en) 1984-07-21
ZA804300B (en) 1981-07-29
DE3069501D1 (en) 1984-11-29
BR8004940A (en) 1981-02-17
EP0025421A3 (en) 1981-04-15
JPS5634807A (en) 1981-04-07
NO802354L (en) 1981-02-09
ES8200736A1 (en) 1981-11-01
AR226565A1 (en) 1982-07-30
AU538966B2 (en) 1984-09-06
DK315080A (en) 1981-02-09

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